1936, U.S. colloquial, from curve (n.) + facetious use of -aceous, the Modern Latin botanical suffix meaning "of a certain kind." First recorded reference is in "Screen Book" magazine, writing of Mae West.
Hollywood seems full of curvaceous blondes
curtain
curtal
curtilage
curtsey
curtsy
curvaceous
curvature
curve
curvilinear
curvity
curvy
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